Meet Dr. DeJean

As a pediatric dentist, I know every child is different and each has their own history that plays a large role in their perception of coming to the dentist. I always take time to alleviate any fears a child may have, either from previous negative experiences or fear of the unknown.​ By taking the time to listen and understand my patient’s concerns through motivational interviewing and shared decision making, I ensure that the patient and family are at the center of the decision making process. This allows me to practice in a patient-centered manner. I want every family to know they are valued for who they are and that I personally and genuinely care about their well-being.

~ Dr. Seth DeJean

Dr. DeJean is passionate about successfully treating apprehensive
children, including those with special needs, and teaching children and their families how to prevent cavities and gum disease. He loves the energy and inquisitive nature of his young patients, and appreciates each child’s unique, developing personality.

With three children of his own, Dr. DeJean knows that patience, kindness, and a gentle approach are essential to gaining a child’s trust, and that of their parents. Reinforcing positive experiences with every interaction, he ensures his patients graduate to an adult dentist with bright, happy smiles, and empowered to continue caring for their oral health!


Prior to dental school, Dr. DeJean completed a Bachelor of Science
in Civil Engineering and worked in the field for several years. While successful as an engineer, he felt drawn to healthcare, desiring the opportunity to help people and build real connections through his work.

Dr. DeJean returned to school and completed eight years of further
education, including his:

  • Post Baccalaureate studies at the University of Louisiana at Lafayette
  • Doctorate of Dental Surgery (DDS) at the Louisiana State University School of Dentistry in New Orleans
  • Two-Year Residency in Pediatric Dentistry at the Harvard School of Dental Medicine and Boston’s Children’s Hospital

Continuing Education and Professional Affiliations

Offering comprehensive, advanced, and researched-based treatment
to his patients and their families is important to Dr. DeJean. He avidly seeks out continuing educational opportunities, seeking to understand the latest research, along with broadening and strengthening his skills.

In addition to personal Invisalign® coaching Dr. DeJean is an active member of the:

  • American Academy of Pediatric Dentistry
  • American Dental Academy
  • Seattle Study Club of Acadiana

These professional organizations offer numerous avenues for Dr.
DeJean to further refine his knowledge. He regularly participates in meetings, seminars, and lectures, as well as studies the latest peer-reviewed journals and other publications.

Beyond the Office

After growing up in Opelousas, Louisiana, Dr. DeJean is grateful
to have returned to Acadiana after his years in Boston, and is pleased to be raising his family here.

Dr. DeJean is happily married to his high school sweetheart, Alexis. The couple has three amazing and entertaining children: Hadley, Paisley, and Bubby (aka Seth Marcel). Their family has grown even more due to the addition of their Goldendoodle, Annie, and Ruthie, their adopted cat. They love to travel and be outdoors: their favorite activity is to light a fire outside and spend quality time together. Many of his Saturdays are spent coaching his young son’s soccer and basketball teams.
While family and work keep him busy, Dr. DeJean is also in the
process of developing a podcast dedicated to pediatric dentistry.

(337) 981-9242
350 Doucet Rd #101
Lafayette, LA 70503
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